Application of POF Optical Fiber System in LAN

I. Overview

As information technology is increasingly developed, data transmission is extremely important, in order to meet the needs of high-speed local computer networks, conference television, video-on-demand applications, and other applications, it is becoming an important topic of material science to seek information transmission media with a higher speed and Information Transmission volume. At present, in the process of information transmission, we can use copper cables with metal as media, Z fiber cables with Z glass as media, and emerging plastic fiber cables with polymer material as media. Copper cables are gradually replaced by optical fibers because they cannot support the high bandwidth required for transmission and have poor anti-electromagnetic interference capabilities. Long-distance information transmission of Z optical fiber has been widely used, however, although used to replace copper as the transmission medium of Z optical fiber, it shows some advantages in long-distance transmission due to its low loss and high electromagnetic resistance. However, it is used in intensive short-range applications, such as fiber-to-home and fiber-to-desktop, the connection is difficult, expensive, and expensive for installation and maintenance.

At the same time, with the continuous development of computer network transmission rate in the office environment, the high data rate to desktop applications become more and more common, and the LAN speed is also changed from 10 Mbps to 100 Mbps, and will soon develop to 1000 Mbps. For cabling systems that transmit data to computer networks, multi-mode Z fiber cables are widely used in the horizontal direction due to a small number of trunk lines connected to floors, there is no suitable medium that can provide sufficient bandwidth and materials with advantages such as convenient installation, low cost, and strong anti-interference ability. The new all-optical fiber network with Plastic Optical Fiber as the transmission media has all the above advantages. The diameter of plastic optical fiber is generally 0.3-3mm. The large diameter is suitable for connection, and the optical coupling efficiency is also high, at the same time, it also has the advantages of softness, bending resistance, vibration resistance, anti-radiation, low price, and convenient construction, which can replace the traditional Z optical fiber and copper cable, and is very suitable for local networks with many connection points.

Using Plastic Optical Fiber to construct a large-scale local area network requires two products: passive wiring and connecting products and active plastic optical fiber network equipment.

Ii. POF optical fiber cabling system solution

　

The POF Optical Fiber Integrated Wiring System can be used as a solution for smart buildings and computer network transmission. Wiring has been widely used since its generation. The system connects the cabling in a building or a computer network, depending on the locations and functions of each part of the building, it is divided into the following sub-module systems:

1. workspace Subsystem

A workspace is a place where staff and communication devices interact. It includes a variety of hardware that connects customer terminals, PCs, or workstations to a communication outlet.

2. Horizontal cabling Subsystem

Horizontal wiring is the part of the system that connects the communication room to the work zone. The products used mainly include copper 4 pairs of twisted pair wires) or optical fiber cables in multi-mode or single mode ).

3. Inter-communication subsystem

Communication devices are mainly used between communication devices, including LAN hubs or switches), horizontal cross-connection cables, and cross-interception wiring hardware ), horizontal crossover is used to provide connections between the main dry cabling or communication devices and horizontal cabling.

4. Vertical trunk Subsystem

Trunk cabling is a trunk system connected to each floor in the system. It consists of copper cables with large numbers of copper), multi-core optical cables, or a combination of the two.

5. sub-systems between devices

Generally, devices are equipped with PBX, network servers, and other voice and data devices, and are the primary cross-connection points of the main nodes of the network, the main cross-connection area provides a cross-connection between the communication device and the horizontal cross-connection area, or the intermediate cross-connection area in a large building or campus environment.

In the integrated cabling solution of POF optical fiber, vertical trunk lines generally use traditional Z optical fiber cables, such as multimode optical fiber cables. POF plastic optical fiber is mainly used in a horizontal system with a large number of connection points. It is used to solve the need to transmit large amounts of data horizontally from a network switch to a computer in each work zone. 2. The data connection in the horizontal direction, that is, the connection from optical fiber to desktop. Due to the large number of connections, it is difficult to achieve universal application in terms of cost, engineering, and management and maintenance by using traditional Z optical fiber. The POF Plastic Optical Fiber has a diameter of 1mm. It is easy to achieve the end connection, coupling and layout of the optical fiber, and has low requirements on the minimum bending radius and installation environment of the cable. Therefore, in high-end all-optical cabling systems, Gigabit network systems, and wiring system engineering that prevents interference and signal leakage, it can be more advantageous than other types of transmission lines.

POF Plastic Optical Fiber Products

A) POF plastic horizontal Optical Cable

The POF plastic horizontal optical fiber is used for the Level subsystem of Integrated cabling to connect terminals and devices on the communication floor in each work zone. Generally 2 cores. The inside is a plastic optical fiber with a diameter of 1mm, and the outer sheath is made of flame retardant polyethylene material. The optical fiber is fully plastic, so no grounding is required during use.

B) POF Plastic Optical Fiber plug

The plastic optical fiber plug-in is a plug-in connecting the plastic optical fiber cable to the device.

C) POF Plastic Optical Fiber jumper

A plastic optical jumper is a cross connection between the optical distribution frame and the device, or a connection line between the optical outlet and the device in the work area.

D) Plastic Optical Fiber mark jumper

Using Plastic Optical Fiber patch cord, you can easily find end-to-end connections of each patch cord on the distribution frame to reduce maintenance work. Two POF plastic optical fiber cables are laid in a conventional twisted pair jumper or fiber jumper. When a red light source is used outside one end of the jumper, A highlighted Red Spot appears.

E) POF Optical Fiber socket

The POF Optical Fiber outlet is the work zone information outlet of the plastic optical fiber cabling system. The Panel is a dual-port structure, and the socket itself is equipped with a dust-proof design and identification.

F) POF Plastic Optical Fiber Coupler

The POF plastic optical fiber coupler is used to connect two optical fiber connectors. The POF optical fiber coupler is a complete plastic product and a standard module. It can be installed on a 19-inch distribution frame and also in a POF Optical Fiber outlet.

G) POF Plastic Optical Fiber Distribution Frame

The optical distribution frame is an end-to-end Device of optical fiber. It is generally used in communication rooms. It is used to achieve cross-connection management between optical fiber and optical fiber, and between optical fiber and equipment. POF plastic optical fiber distribution frame is a standard 19 "cabinet type with built-in optical fiber connection shield. The height of this distribution frame is 1 U1. 75 inch), which can accommodate 16 plastic optical fiber cables. The distribution box is compatible with the ST, SC, and FC adapters, and can be simultaneously connected to multimode or single-mode optical cables.

3. Plastic Optical fiber LAN

In modern smart buildings and various office environments, computer networks are widely used, especially LAN technologies with Ethernet technology as the core, occupying most of the market. In various networks, the number of nodes and ports is increasing, and the transmission speed is getting faster and faster. At present, the development has started from 10 Mbps and Mbps to 1 Gbps. The full-fiber port device has gradually evolved from trunk connection to desktop. At present, the backbone network mainly uses Z optical fiber to ensure sufficient transmission bandwidth. However, the Working Group and client do not have a suitable all-optical solution because of the large number of connections. Plastic optical fiber network products are mainly used to achieve high-speed network connection between working group switches and computer devices.

4. In all-optical networks, the trunk part of the network generally uses a Z optical fiber network device to ensure the transmission distance. Plastic Optical Fiber devices are used between working groups and between Working Groups and users to transmit all information over the LAN.

Plastic optical fiber network equipment

1. Plastic Optical Fiber Department Switch

This switch is a department-level switch device. Multiple Ethernet fiber ports are available. High-bandwidth and high-performance Optical Fiber connections can be provided between Working Groups or within working groups, allowing users to access the entire network resources more quickly. Solve the network bandwidth bottleneck between the computer and the working group switch.

2. Plastic optical fiber network card

PCI NICs with Ethernet Plastic Optical Fiber interfaces comply with IEEE standards. They are plug-and-play and support full duplex mode.

3. POF-RJ45 Optical Transceiver

POF-RJ45 optical transceiver is an Ethernet optical interface to RJ45 converter. It provides a POF fiber port and a twisted pair port with an RJ45 connection interface. It converts electrical signals from an Ethernet network to optical signals transmitted on a POF plastic optical fiber, and vice versa. The POF-RJ45 optical transceiver provides Interface Conversion for Ethernet devices without POF Optical Fiber interfaces as an independent device.

Iv. Summary　

The development and development of Plastic Optical Fiber Materials and plastic optical fiber network equipment will provide better solutions for higher-speed network connections. At present, many companies and standardization associations have joined the ranks and invested a lot of manpower and material resources. POF plastic optical fiber is an alternative product for copper cables and Z optical fiber cables. Its application has also been supported by various technical standards, such as Ethernet, 1394, and ATM. It is foreseeable that in recent years, with its unique technical characteristics, POF plastic optical fiber technology will have a broader development prospect in Integrated Wiring, local area network, and multimedia applications.